Fibre-reinforced composite materials have gained popularity in high performance products that need to be light-weight yet strong enough to take harsh loading conditions such as in transport (cars and body panels, bumper, engine components, fuel lines), aerospace (bulk head and floor, landing gear door, rotor blade, satellites structure, cargo liner) . Boat decking (Boat hull, submersible pressure hull, propeller, shaft). Engineering (pipe system, power transmission drive shaft storage tank, air duct work, pressure vessel), Sports (bike frames, canoe, finishing rods, skipoles, racquets surf band). Health (Artificial teeth), Domestic purpose (shower unit, furniture, sanitary wear, bath.
The matrix materials can be introduced to the reinforcement before or after the reinforcement material is placed into the mould cavity or on the mould surface. The moulding methods can be by transfer moulding, press moulding, pultrusion moulding, vacuum bag moulding, filament winding, casting, centrifugal casting, wet lay-up, compression moulding, thermoplastic moulding, hand lay-up, spray lay-up.
The use of glass fibre to fill polyester has been reported, Polyester was reinforced with glass fibre and it was found that the increase in specimen size geometry led to an increase in energy at break, peak load, critical strain energy release rate and critical stress.
Woven roving glass fibre and chopped strand glass fibre have been utilized successfully in preparing polyester composites. The tensile strength and tensile modulus of the polyester composites were found to increase with increase in number of plies. The tensile strain of the prepared composites increased with increase in number of plies and further addition of plies decreased the tensile strain.
The use of glass fibre woven roving and chopped strand mat for the automobile industry will greatly reduce the weight which when used in fabricating the entire car body will result to a decrease in fuel consumption and increase in the speed of the car.
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